To Flying Lawyer.
One point brought up by you was in response to the accident rate of 45,454 between accidents. First of all this is astatistical mean. and, it reflects accidents that occured in large numbers over a rather short time period. Since the AD that restricts the side slip and out of trim flight was implemented there were no more accidents that is until three weeks ago when an R22 lost its' rotor in California. You state that the Robinson helicopters are the most widly used helicopter for initial training and that many of the are flown by PPLs and not professionals. That is the major problem. If you are restricted from side slipping and flying out of trim how do you think you will react when you move up on the helicopter food chain and find out that every other helicopter can be side slipped and flown out of trim within design limits.
Getting back to the 45,454 hours between accidents what are your thoughts about this.
Let's say there are 1000 Robinsons flying and each one flys 45.45 hours. From a statistical standpoint one Robinson will lose its' rotor or the rotor will hit the tail cone or the cockpit area. Do you want to be the one that is flying when the total flight time hits 45.454 hours. The only safety device you have to protect yourself is the last page of section 4 of the POH
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The Cat